I have a 300WSM, and H4350 for accuracy, and IMR 4350, and IMR4831 give me good velocity with reasonable grouping.
I have one buddy getting out standing results in his 270WSM using 140 Accubonds and H4831SC

Simdow,

I tried IMR 7828 and RL 22 in the 7mm WSM with 140's and settled on the RL 22. It gave about 3250 fps.

Check the loads at www.shortmags.org

Tried em all. Ramshot Hunter won hands down.

My favorite is IMR4831 topped with a Barnes 150gr TSX. In my A-bolt 300WSM, 1" or better at 100 yards.

Also have used Reloder 15 with the 168gr XLC, Also MOA when I am able to do my part. I know that is a faster powder than most people would use for the 300WSM, but it works.

I've been working with IMR4831 and 140gr Northforks in my Kimber 7mmWSM. I have not found a good load yet but now that hunting season is over I should be able to spend more time , any suggestions on this one would be appreciated,

Simdow

200 yard groups from 3 different Lightweight rifles and 3 different Premium Hunting Bullets

RL-22 and Magpro

I have 3 that I've been using for my 300 WSM. AA XMR4350, R 19, and H4831 short cut for 165's and 180. I tried ww760, IMR 7828. 760 runs into pressure before getting any velocity. 7828 seems to be too slow, can't get enough in the shell to get top velocity. Accuracy champ for me is H4831SC with the 165 interbond.